A game which all players of Counter-Strike, Halo, Quake et al should thank for making the first-person shooter genre what it is today.

Doom is a classic in the true sense of the word. It spawned techniques still used in First-Person Shooters today.

Doom >is greater than> CS+HL+Halo+Quake+Unreal+GoldenEye

All are fantastic games, but Doom outranks them all. After all, Doom is simply legendary among shooter fans, even more so than the seminal CS. Thank Doom, with its crude 2D sprites, blocky graphics and unparalleled gameplay.

One of the greatest FPS of all time. While the game may look outdated today, the gameplay is unparalleled even today. The game plays incredibly well even nowadays. Most fanboys/fags say it sucks because the graphics are bad, but in that case, they need to fuck themselves. Gameplay > graphics.

Probably the best 1st person shooter ever created. Kicks ass. You are a marine on the phobos moon base where everything fucks up and you kill zombies monster demons and shit. The plot was stolen (and some level design) to make Event Horizon. In short, play DooM or people will make fun of you!

Dude, I'm playing DooM on Ultra-Violence!
Cool, did you get the chainsaw yet?

A PC game made by id Software, also responsible for games such as Quake and Wolfenstein. You kill monsters with cool weapons. Made in 1992, uses 2D sprites for enemies, objects, your character's hand with gun. First person shooter.